[cantfindmypass]

Last time I looked into persona, it was essentially unusable for my usage - there's no reasonable way to use a different email address to sign up for every site. I like to know who leaked my email address when I start getting spammed.

Edit: looks like they may have have fixed it: http://support.mozilla.org/en-US/kb/how-do-i-manage-my-perso...

Though I'm not sure if it remains usable with hundreds of email addresses.

[StavrosK]

That's one of the things I needed too, so I built this (sorry for posting it so much here): https://www.persowna.net/

You can add your domain as a catch-all, so you can authenticate with [e-mail] and it will use a single account to authenticate. Services will still see your custom email address, but you only need one password.